Gas-stove



(N6 Model.) V G. W. COLEMAN.

GAS STOVE. No. 349,209. Patented Sept. 14, 1886.

UNITED STATES GEORGE \V. COLEMAN,

SPECIFICATION forming part of Letters PATENT OFFICE.-

OF CINCINNATI, OHIO.

GAS-STOVE.

Patent No. 349,209, dated September 14, 1886.

Application filed May a, 1885..

Serial No. 166,850. (No model.)

To all whom it may concern.-

Be it known that I, GEORGE W. COLEMAN, a resident of Cincinnati, in thecounty of Hamilton and State of Ohio, have invented certain new anduseful Improvements in Gas-Stoves, of which the following is aspecification.

My invention relates to an improved gas burner for stoves.

Great difficulty has been experienced hitherto in obtaining suitableresults in the consumption of gasoline, gas, or carbureted air inheating and cooking stoves, because of the difficulty of properlysupplying air to the burner-orifices; hence a smoky flame is the result.By myinvention these objections are obviated, as'a thorough mingling ofthe air and gas is effected as they enter the combustion-chamber.

The invention consists in the novel construction and combinations ofparts hereinafter described aud claimed, and illustrated in theaccompanying drawings, in which Figure 1 is an elevation of my improvedchimney; Fig.2, a central cross-section, partly in elevation; Fig. 3, atop plan view of'the burner, with the chimney removed Fig. '4, a detailview of the burner-coil.

A represents the base of the chimney or flue, which is made of metal, ofany desired form.

(t represents an annular flange formed upon the inside and at the top ofthe base.

1) represents a vertical outside flange or rim, which is simply used asa guard 'to prevent the top part of the chimney from being jostled offwhen it is made of two parts.

B represents the chimney or combustion chamber, preferably made ofmetal. This chimney is provided with scalloped points in the bottom rim,between which are airspaces C, for supplying air to the burner. The topsection, 0, is a duplicate of the bottom section, sothat the chimney maybe used either side up, as desired. The barrel portion is preferablymade of sheet metal and the rims G O of cast metal, so as to havesut'ficient weight to hold the chinmey in position on the base.

D represents the j et-burner, which is preferably in the form of a coilor annular tube. It

is pierced with a series of small holes, at, upon the upper surface ofthe tube.

E represents a bridge-pipe connecting the annular tube D with the hollowhub F.

G represents a pipe tapping into the hub F, and H a branch pipe tappinginto the pipe G, for supplying gas to the annular tube D. The pipe H isconnected to the gas source of supply. The tube or burner D occupies aposition within the base of the chimney, and is so located that the airhas free access all around the jet-pipe.

I represents a plate supported on the center of the hub F. It is archedand extends backward and outward, so as to leave a free space above thebarrel D, terminating on a plane abutting an outside plate, K,preferably formed on the base of the chimney, leaving an airspace, 'i 6,over the ring D of suflicient area to properly throttle the air andcreate a draft, the jets d being near the center of this air-space z.

The plates I K form a contracted entrance at the base of the chimneyinto the combustionchamber B, and direct and compel the air to mingleand mix with the gases escaping through the jets d as they enter thechamber B, and by reason of the heat induce a strong draft and anadequate supply of oxygen, and furnish a complete combustion of all thegases without causing smoke.

I have found by experiment that not only carbureted air but fixed gaswill burn in this device without smoke, and without causing an odor orunpleasant smell in the room, and in this respect it is an improvementover other burners in use in gas-stoves.

These stoves and chimneys can be employed in the ordinary manner commonto kerosene and gas stoves, and may be combined with ovens orheating-suriaces, as desired.

The drawings illustrate only the annular form of my burner with the jetsescaping into a contracted airspace, which freely admits air upon bothsides of the jets and leads into a large heating and combustion chamberformed in the upper part of the chimney.

I do not wish to limit my claims herein to the annular form of burner,as I propose to use any form of burner which will successfully cooperatewith a stove having a base with an annular opening in its top.

I claim- 1. The combination, in a gas-stove, of a base having an annularopening in its top, a chimney forming a combustion-chamber above andsupported upon said base. and a tubular jetburner located beneath theannular opening and admitting air upon both sides of each jet, whereby athorough mingling of the air and gas is effected as they enter thecombustionchamber, substantially as described 2. The combination, in agas-stove, ot' a base having an annular contracted opening in its top, achimneyor flue supported upon said base and constituting acombustioil-chamber, and a jet-burner located within the base beneaththe opening, and having air-passages between the walls 01' the base andthe burner and between the jets. whereby a, thorough mingling of the airand gas is effected substantially at the initial point of combustionsubstantially as described.

3. A gas-stove composed of the base A, having the annular plates 1 andK, separated at their adjacent edges to form a contracted open-

